Access Relationship data for Customer in C4C

Hello Experts,

I have a requirement to access all the relationship data for customer(Has contact, Attributes etc).

I am able to generate the following code successfully in Repository Explorer.

import ABSL;

import AP.FO.BusinessPartner.Global;

var query = Customer.Relationship.QueryByIdentification;

var resultData = query.ExecuteDataOnly();

// 2. Selection

var selectionParams = query.CreateSelectionParams();

selectionParams.Add(query.InternalID, "I", "EQ", "10062");

// Result

resultData = query.ExecuteDataOnly(selectionParams);

But the same code if i copy in After modify event i get error

Error 1 [Activate] Identifier 'QueryByIdentification' does not exist.

Please help.

Thanks and regards, Santosh